The nutrients themselves could come from conventional crops, but Dr Post also has plans to use algae, which grow faster than vascular plants, to provide the necessary amino acids, sugars and fats.

那些营养物质可以从普通农作物中获取，但Post博士计划使用藻类，因为它们比那些维植物长的要快，以此提供所需的氨基酸、糖类脂肪。

Now step with me into this giant as we peer through the bark, the vascular system of the tree reveals itself.

现在请我一起进入这棵巨树中，我们透过树皮窥视，树木的维展现在我们眼前。

And there are two main types of cells that make up that vascular tissue: xylem and phloem.

构成维的细胞主要有两种：木质部韧皮部。

Please welcome: dermal tissue, the plant's skin; vascular tissue, the plant's veins; and ground tissue — everything in between.

表皮，植物的皮肤；维，植物的脉络；还有基——介于两者之间的一切。

The three main organs that comprise a plant body are stems, leaves, and roots, and their presence is one of the defining characteristics of a category called vascular plants.

成植物体的三个主要器官是茎、叶根，它们的存在是维植物的一个决定性特征。

Although many of the early seedless vascular plants have gone extinct, you can still find some of them growing today.

虽然许多早期的无籽维植物已经灭绝了，但你仍然可以发现它们中的一些在今天生长。

Their epidermis, or outermost layer of tissue, produces billions of tiny hairs that absorb water and nutrients, and their vascular tissue transports the nutrients up to the stem and leaves.

它们的表皮，或最外层的，产生了数十亿根微小的毛发，这些毛发吸收水分营养，它们的维将营养物质运送到茎叶。

Having a dominant sporophyte introduced lots of advantages — like, while the spore-making generation of a bryophyte couldn't grow very far off the ground; the sporophytes of seedless vascular plants could grow much taller and larger, with more room for spore-producing organs.

拥有一个优势孢子体带来了很多好处——比如，苔藓植物的产孢体不能长得离地面很远；而无籽维植物的孢子体可以长得更高更大，有更多的空间容纳产孢器官。

And scattered throughout the ground tissue are the vascular tissue bundles, or veins, which look weirdly like they're screaming.

分散在地面中的是维束，或静脉，它们看起来很奇怪，就像在尖叫一样。

OK, so the third and final tissue type is ground tissue, which is everything that isn't dermal or vascular — basically, the meaty bits of the plant.

好的，第三种也是最后一种类型是基质，也就是除了表皮维以外的所有东西，基上就是植物的肉质部分。

But lycopods were also the earliest vascular plants, which means they were the first plants to contain xylem, a special tissue that moves water and nutrients from the roots to the leaves.

但是， 石松类也是最早的维植物，这意味着它们是第一批含有木质部的植物，木质部是一种特殊的， 负责将水分养分从根部运输到叶子。

But, they were the first plants to form true roots, stems, and leaves that contain vascular tissue, so they're considered the first vascular plants.

但是，它们是第一批形成真正的根、茎含有维的叶子的植物，所以它们被认为是第一批维植物。

So big, complex life on land -- like vascular plants -- probably wouldn't have been possible if Tortotubus and its fungal predecessors hadn't prepared the land first.

因此，像维植物这样的大型复杂陆地生命，如果没有托尔托及其真菌前辈们事先准备好的土壤，可能根无法存在。

It's got a similar vibe to the stem, except its vascular tissue is clustered in the center of the root.

它茎有相似的感觉——除了它的维聚集在根的中心。